<template>
	<div>
		<div class="search">
			<input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li class="search-item border-bottom"
				 v-for="item of list"
				 :key="item.id"
				 @click="handleCityClick(item.name)"
				 >
					{{item.name}}
				</li>
				<li v-show="hasNoData" class="search-item border-bottom">
					没有找到匹配数据
				</li>
			</ul>
		</div>
	</div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapMutations} from 'vuex'
export default{
	name:'CitySearch',
	props:{
		cities:Object
	},
	data (){
		return{
			keyword:'',
			list:[],
			timer: null
		} 
	},
	watch:{
		keyword (){
			if (this.timer){
				clearTimeout(this.timer)
			}
			if(!this.keyword){
				this.list=[]
				return
			}
			this.timer=setTimeout(() => {
					const result=[]
					for (let i in this.cities){
						this.cities[i].forEach((value)=>{
							if(value.spell.indexOf(this.keyword)> -1||value.name.indexOf(this.keyword)>-1){
								result.push(value)
							}
						})
					}
					this.list=result
			}, 100)
			
		}
	},
	computed: {
		hasNoData () {
			return !this.list.length
		}
		
	},
	methods: {
		handleCityClick(city){
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations(['changeCity'])
	},
	mounted (){
		this.scroll=new Bscroll(this.$refs.search);
	}
}
</script>
<style lang="stylus" scoped>
	@import '~styles/varibles.styl'
	.search
		height:.72rem
		padding:0 0.1rem
		background:$bgColor
		.search-input
			box-sizing:border-box
			width:100%
			height:.62rem
			padding:0 .1rem
			line-height:.62rem
			text-align:center
			border-radius:.06rem
			color:#666
	.search-content
		z-index:1
		overflow: hidden
		position:absolute
		top:1.58rem
		left:0
		right:0
		bottom:0
		background: #eee
		.search-item
			line-height:.62rem
			padding-left:.2rem
			color:#666
			background:#fff
		
</style>
